Doubts & DiscussionGeochemistry
Raghuvirsinh Jadeja asked 4 years ago
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Which one is CORRECT for the following equilibrium reaction between quartz and
magnetite:
Si16O
16O + Fe3
16O3
18O = Si16O
18O + Fe3
16O4 ?
(A) 1000 ln ? = ?qtz-mag where ? = K1/n (K is the equilibrium constant at the specified
temperature and n is a constant quantity)
(B) 1000 ln ? = ?qtz-mag where ? = Kn
(K is the equilibrium constant at the specified
temperature and n is the number of exchangeable atomic sites)
(C) (ln ? /1000) = ?qtz-mag where ? = K1/n (K is the equilibrium constant at the specified
temperature and n is a constant quantity)
(D) 1000 ln ? = ?qtz-mag where ? = K1/n (K is the equilibrium constant at the specified
temperature and n is the number of exchangeable atomic sites)
Please explain this…

1 Answers
GeoCon Staff answered 4 years ago

fctionation in isotope is given by
? ? 1000 ln(?)
where,
ln? = 1/n ln(K)
where n is the number of atoms exchange
So option D, will be correct